While mechanical automata had existed since ancient Greece, the first mass-produced mechanical toy robots were built in Japan following World War II. These early wind-up robots, typically made from tin and wonderfully detailed, delighted young children around the world. Now considered both works of art and engineering wonders, the toy robots from the 1940s and 50s are highly sought after by collectors.https://www.youtube.com/watch?v=y9Vboa8jk6w Watch More Timeless Toys Videos.